Mark Lounsbery, D.O
NPI 1568654648 · Internal Medicine Physician · Sioux Falls, SD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Lounsbery, D.O is a Internal Medicine Physician provider in Sioux Falls, SD (NPI 1568654648).
Provider details
- NPI number
- 1568654648
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O
- Sex
- Male
- Sole proprietor
- No
- License
- 7272 (SD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,145 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,069 | $92 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 1,018 | $8 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 993 | $16 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 18 | $8 |
| Physician Or Allowed Practitioner Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians andG0180 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 141 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 605 | 155 |
| Omeprazole | 539 | 127 |
| Amlodipine Besylate | 492 | 125 |
| Rosuvastatin Calcium | 461 | 125 |
| Levothyroxine Sodium | 456 | 106 |
| Lisinopril | 437 | 111 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-08-13
- Last updated
- 2022-04-06
- Certified
- 2022-04-06
Frequently asked questions
- What is Mark Lounsbery's NPI number?
- Mark Lounsbery's National Provider Identifier (NPI) is 1568654648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Lounsbery's specialty?
- Mark Lounsbery is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Lounsbery located?
- Mark Lounsbery's practice location on file with NPPES is 1205 S Grange Ave Ste 510, Sioux Falls, SD 57105-0410.
- What is Mark Lounsbery's phone number?
- The practice phone number listed in the NPPES registry for Mark Lounsbery is (605) 328-7500.
- Does Mark Lounsbery accept Medicare?
- Mark Lounsbery is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Lounsbery's NPI active?
- Yes — Mark Lounsbery's NPI (1568654648) is active in the NPPES registry as of the last update on 2022-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.